Bidspirit auction | 2 Jack Tworkov Mathematical Sequence

2 Jack Tworkov Mathematical Sequence Lithographs - Jack Tworkov (Polish/American, 1900-1982). Group of two lithographs inspired by mathematical number sequences, publishing by Landfall Press, including: ”LP#1-Q2-75,” pencil signed along the lower right; titled and numbered 19/20 along the lower left; inscribed V2/75 along the lower right corner of the image. ”LP#2-Q2-75,” pencil signed along the lower right; titled and numbered 11/20 along the lower left; inscribed V2/75 along the lower right corner of the image. Each with a stamp from Landfall Press along the verso. LP#1; sheet; height: 30 in x width: 30 in. Image; height: 25 in x width: 25 in. LP#2; sheet; height: 30 in x width: 33 3/4 in. Image; height: 24 3/4 in x width: 28 3/4 in. Condition: The prints are in generally fair condition. The colors are bold and bright and there are no signs of restorations. There are small creases throughout each work. LP#2 has a large crease along the upper right corner. There is a rip along the upper edge that measures approximately 3/4 inches and extends downwards. LP#1 has two spots along the verso where there is a slight loss to the top layer of the paper and residual hinging tape remaining, likely from a previous framing job. The works are not framed.